# Relationship history for MSHA mine 4407109

Current hierarchy: **Eddie R  Martin → Triple M Mining Inc → #1**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Alpha Natural Resources, Inc. → #1; 2002-12-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paramont Coal Company Virginia LLC → #1; 2004-08-09 to 2004-12-19; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Paramont Coal Company Virginia LLC; 2004-08-09 to 2004-12-19; source msha-controller-operator-history
- **operator_operates_mine:** Triple M Mining Inc → #1; 2004-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eddie R  Martin → #1; 2004-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eddie R  Martin → Triple M Mining Inc; 2004-12-20 to current/open; source msha-controller-operator-history